Mold for cement wash-tubs



(No Model.) 2Sheets-Sheet 1. J. MOORE.

4 MOLD FOR GEMENT WASH TUBS.

No. 449,884. Patented Apr. 7, 1891.

WITNESSES (No Model.)

' 2 Sheets-Sheet 2.

J.. MOORE, MOLD FOR CEMENT WASH TU'BS.

No. 449,884. Patented Apr. 7,1891} WITNESSES:

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ATTORNEYS mums ravens co., PNbTO'LlTHO wAsNmurori, u c.

NITED STATES I'ATENT rFIcE;

MOLD FOR CEMENT WASH-TUBS.

SPEQIFIGA'I ION forming part of Letters Patent No. 449,884, dated-April 7, 1891. Application filed December 23, 1896. Serial No. 375,603. (No model.)

To all whom it may concern:

Be it known that I, JOHN MOORE, of East New Durham, (Guttenberg P. O.,) in the county of Hudson and State of New Jersey, a citizen of the United States, have invented certain new and useful Improvements in Molds for Cement Wash-Tubs, of which the following is a specification.

This invention relates to an improved mold for making cement washtubs, sinks, and other articles of cement, the mold being designed with the view to facilitate the casting of said articles and the quick removing of the mold-sections after the casting of the articles is completed; and the invention consists of a mold for making wash-tubs and the like which is composed, essentially, of a core formed of angular corner-pieces at diagonal points and angular side pieces, which are connected by means of bolts and thumb-nuts to the corner-pieces, and of a bottom part made of two sections, united by an inclined joint, and provided with means for preventing the longitudinal and the lateral displacement of the bottom sections. The outer part of the mold consists of side walls, which are connected bybolts to the front and rear walls, and of top and bottom walls, as will be fully described hereinafter, and finally pointed out in the claims.

In the accompanying drawings, Figure 1.

represents a front elevation of my improved mold for making cement wash-tubs. Fig. 2 is a vertical longitudinal section of the same on line 2 2, Fig. 6, showing the mold in an inverted position and ready for casting the concrete into the same. Fig. 3 is a side elevation of the mold. Fig. eis avertical transverse section of the same, also in inverted position. Fig. 5 is an inside View of the sectional bottom of the core, and Fig; 6 is a horizontal section of thecore and outer section of the mold.

Similar letters of reference indicate corresponding parts."

Referring to the drawings, A represents the core of my improved mold for making cement wash-tubs. This core is made of six parts, four of which constitute the side portion of the mold, while the remaining two constitute the sectional bottom B of the same. The side portion of the core A is formed of that act at the same time as strengthening strips for the flanges of the corner-pieces a a. The corner-pieces a a are arranged to form the diagonally-opposite corners of the core A, and are provided with inclined faces a between the interior flanges a and the main part or body of the corner-pieces act, as shown in Fig.

6, which inclined faces form a close joint with the correspondingly-inclined ends of the side pieces The front wall of the core A is made inclined, the inclination corresponding to the angle of inclination that is to be imparted to the front wall of the wash-tub. The bottom of the core is made of two sections B, which are connected at the centerby an oblique joint, the bottom having, preferably, aslight inclination or fall from one side wall to the opposite one, so as to shed water to the outletpipe, as shown in Fig. 2. The sections of the bottom B are connected by a slotted strap e,

that is attached to the inside of the bottom sections by means of screw-bolts e, set into said sections, and thumb-nuts 6 as shown in Figs. 2 and 5. This connecting-strap, together with its fastening bolts and nuts, prevents the displacement of the bottom sections in longitudinal direction. The lateral. displacement of the same is prevented by a grooved portion f, that is attached to one section and extended over the other and engaged by the tongue of the second section f, attached to the other section of the bottom B, as shown clearly in Fig. 5. The interlocking of the groove and tongue thus obtained pre-' vents any lateral displacement of the bottom sections. The outer part of the mold is formed of a base-plate O, on which the entire mold is supported in inverted position, and side walls D, which are set into grooves of the front and rear walls D D The front and rear walls D D are firmly con heated by transverse fastening-bolts D located outside of the side walls, while the top E of the mold is applied by means of hooks h, which are hinged to the ears at the ends of the top, as shown' in Fig. 2. The front and rear walls D D are stiffenedby central exterior strips D which are extended beyond the upper and lower edges of the same, so as to form handles, by means of which the entire mold can be taken hold of in handling and turning the same ov'er'for receiving the core from the wash-tub cast in the mold. terior cleats and rigidly secured in position by means ofwedge-pieces, (not shown in the drawings,) which are driven in between the side walls and the transverse bolts, so that duced in the usual manner by means of suitable cores 0, as indicated in Figs. 2' and 4. When the interior core of the mold andthe outer sidewalls of the same are erected on thebase-plate in inverted position, the cement is cast in plastic form into the interior space formed between the core and the outer walls. Vhen the mold is filled, the top part of the cement is smoothed ofi and the top plate placed on the same and attached to the side The cement is then permitted to set for soine time. When it has hardened sufficiently, the

' entire mold, with the Wash-tub in the same; is

turned around so that the base-plate is at the" top and the top at the bottom. 'When' the mold is in this position, the core is first removed by loosening the interior thumb-nuts, so that the corner-pieces can be moved in wardly along the inclined ends of the side walls, so as to provide su fticients'pace'to'per mit the removing of the sidewalls'of the''or' from the wash-tub. The bottom of the core is then removed by detaching its connect'itig' devices, moving one section along'the inclined joint of the other section,- and removing'first one section and then the other section of the" r bottom. The outer Walls of the mold are" then removed by loosening the transverse bolts and detaching them from each" other until the cement Wash-tub rests entirely free of its mold-sections on the top of the mold and 1 can be subjected to final drying.

The main feature of my invention consists in the construction of the core, as by the same the putting up of the mold for the casting of the Wash-tub or other article and the removing of the mold are greatly facilitated and ex- I pedited.

The side walls are re enforced by exi Having thus described my invention, I

, claim as new and desire to secure by Letters Patent 7 1.= A core for the molds of cement washtubs, the body of which is composed of diagonal corner-pieces having inclinedfaces and interior fianges, angular side walls havingin- 5 clined ends, and fastening bolts and nuts for cementing the corner-pieces and side walls, substantially as set forth.

2. Ina mold for making cement wash-tubs or other articles, a core composed of diagonal I corner-pieces having inclined side faces and .interior slotted flanges, angular side walls, bolts and thumb-nuts for cementing said corner-pieces and side \vall's,and asectional bottom having an inclined joint and provided withmeans' for preventing the longitudinal and the lateralshift'ing of the bottom sections,

substantially as set forth, Walls by the hinged hook, as shown in Fig. 2. i

3. A core for the molds of cement washcomposed of diam'etrical corner-pieces having inclined side faces and interior slotted flanges, and angular side walls connected to the corner-pieces by'bolts and thumb-nuts,

and a bottom which is formed of two sections connected by an inclined joint, a longitudina'l strap attached by screw-bolts to the inside of the bottom, and interlocking tongue-andgroove pieces also at the inside of the bottom sections, respectively, to prevent the longi tudinal shifting and lateral displacement of the bottom section's, substantially as set forth. In testimony that I claim the foregoing as my'inven'tion I have signed my name in pres ence' of two subscribing witnesses.

W JOHN MOORE. Witnesses: 7

PAUL GoEPEL, CHARLES SCHRQEDER. 

